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. 2019 Apr 25;9(1):6557.
doi: 10.1038/s41598-019-42968-3.

Ocular biometry and refractive outcomes using two swept-source optical coherence tomography-based biometers with segmental or equivalent refractive indices

Miki Kamikawatoko Omoto  1 , Hidemasa Torii  1 , Sachiko Masui  1 , Masahiko Ayaki  1 , Kazuo Tsubota  1 , Kazuno Negishi  2
Affiliations

Ocular biometry and refractive outcomes using two swept-source optical coherence tomography-based biometers with segmental or equivalent refractive indices

Miki Kamikawatoko Omoto et al. Sci Rep. .

Erratum in

Abstract

This study compared the axial length (AL), central corneal thickness (CCT), anterior chamber depth (ACD), lens thickness (LT), mean anterior corneal radius of curvature (Rm), and postoperative refractive outcomes obtained from two different swept-source optical coherence biometers, the ARGOS (Movu, Nagoya, Japan), which uses the segmental refractive index for each segment, and the IOLMaster 700 (Carl Zeiss Meditec, Jena, Germany), which uses an equivalent refractive index for the entire eye. One hundred and six eyes of 106 patients with cataracts were included. The refractive outcomes using the Barrett Universal II, Haigis, Hoffer Q, and SRK/T formulas were evaluated. The mean AL, CCT, ACD, and Rm differed significantly (P < 0.001) with the IOLMaster 700 (25.22 mm, 559 µm, 3.23 mm, and 7.69 mm) compared with the ARGOS (25.14 mm, 533 µm, 3.33 mm, and 7.66 mm). The mean LTs did not differ significantly. The percentages of eyes within ±0.50 and ±1.00 diopter of the predicted refraction did not differ significantly (P > 0.05). The accuracy of the intraocular lens power calculations was clinically acceptable with both biometers, although the ocular biometry using these two biometers exhibited certain differences.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Figure 1
Figure 1
Bland-Altman plots show the agreements between the two biometers in the AL, CCT, ACD, LT, and Rm (n = 106). The solid lines indicate the mean difference. The dashed lines indicate the 95% LoAs.
Figure 2
Figure 2
Distribution of the arithmetic prediction error in refraction with the four IOL power calculation formulas and the two optical biometers for the entire AL range, medium and long AL subgroups. *P < 0.05.
Figure 3
Figure 3
Distribution of the absolute prediction error in refraction with the four IOL power calculation formulas and the two optical biometers for the entire AL range, medium and long AL subgroups. *P < 0.05.
See this image and copyright information in PMC

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